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Add ROCm 6.4 to --torch-backend=auto #16919

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Merged
charliermarsh merged 1 commit into from
Dec 2, 2025
Merged

Add ROCm 6.4 to --torch-backend=auto #16919

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33 changes: 32 additions & 1 deletion crates/uv-torch/src/backend.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -113,6 +113,10 @@ pub enum TorchMode {
Cu90,
/// Use the PyTorch index for CUDA 8.0.
Cu80,
/// Use the PyTorch index for ROCm 6.4.
#[serde(rename = "rocm6.4")]
#[cfg_attr(feature = "clap", clap(name = "rocm6.4"))]
Rocm64,
/// Use the PyTorch index for ROCm 6.3.
#[serde(rename = "rocm6.3")]
#[cfg_attr(feature = "clap", clap(name = "rocm6.3"))]
Expand Down Expand Up @@ -272,6 +276,7 @@ impl TorchStrategy {
TorchMode::Cu91 => TorchBackend::Cu91,
TorchMode::Cu90 => TorchBackend::Cu90,
TorchMode::Cu80 => TorchBackend::Cu80,
TorchMode::Rocm64 => TorchBackend::Rocm64,
TorchMode::Rocm63 => TorchBackend::Rocm63,
TorchMode::Rocm624 => TorchBackend::Rocm624,
TorchMode::Rocm62 => TorchBackend::Rocm62,
Expand Down Expand Up @@ -516,6 +521,7 @@ pub enum TorchBackend {
Cu91,
Cu90,
Cu80,
Rocm64,
Rocm63,
Rocm624,
Rocm62,
Expand Down Expand Up @@ -647,6 +653,10 @@ impl TorchBackend {
TorchSource::PyTorch => &PYTORCH_CU80_INDEX_URL,
TorchSource::Pyx => &PYX_CU80_INDEX_URL,
},
Self::Rocm64 => match source {
TorchSource::PyTorch => &PYTORCH_ROCM64_INDEX_URL,
TorchSource::Pyx => &PYX_ROCM64_INDEX_URL,
},
Self::Rocm63 => match source {
TorchSource::PyTorch => &PYTORCH_ROCM63_INDEX_URL,
TorchSource::Pyx => &PYX_ROCM63_INDEX_URL,
Expand Down Expand Up @@ -774,6 +784,7 @@ impl TorchBackend {
Self::Cu91 => Some(Version::new([9, 1])),
Self::Cu90 => Some(Version::new([9, 0])),
Self::Cu80 => Some(Version::new([8, 0])),
Self::Rocm64 => None,
Self::Rocm63 => None,
Self::Rocm624 => None,
Self::Rocm62 => None,
Expand Down Expand Up @@ -824,6 +835,7 @@ impl TorchBackend {
Self::Cu91 => None,
Self::Cu90 => None,
Self::Cu80 => None,
Self::Rocm64 => Some(Version::new([6, 4])),
Self::Rocm63 => Some(Version::new([6, 3])),
Self::Rocm624 => Some(Version::new([6, 2, 4])),
Self::Rocm62 => Some(Version::new([6, 2])),
Expand Down Expand Up @@ -877,6 +889,7 @@ impl FromStr for TorchBackend {
"cu91" => Ok(Self::Cu91),
"cu90" => Ok(Self::Cu90),
"cu80" => Ok(Self::Cu80),
"rocm6.4" => Ok(Self::Rocm64),
"rocm6.3" => Ok(Self::Rocm63),
"rocm6.2.4" => Ok(Self::Rocm624),
"rocm6.2" => Ok(Self::Rocm62),
Expand Down Expand Up @@ -991,9 +1004,21 @@ static WINDOWS_CUDA_VERSIONS: LazyLock<[(TorchBackend, Version); 26]> = LazyLock
///
/// AMD also provides a compatibility matrix: <https://rocm.docs.amd.com/en/latest/compatibility/compatibility-matrix.html>;
/// however, this list includes a broader array of GPUs than those in the matrix.
static LINUX_AMD_GPU_DRIVERS: LazyLock<[(TorchBackend, AmdGpuArchitecture); 44]> =
static LINUX_AMD_GPU_DRIVERS: LazyLock<[(TorchBackend, AmdGpuArchitecture); 55]> =
LazyLock::new(|| {
[
// ROCm 6.4
(TorchBackend::Rocm64, AmdGpuArchitecture::Gfx900),
(TorchBackend::Rocm64, AmdGpuArchitecture::Gfx906),
(TorchBackend::Rocm64, AmdGpuArchitecture::Gfx908),
(TorchBackend::Rocm64, AmdGpuArchitecture::Gfx90a),
(TorchBackend::Rocm64, AmdGpuArchitecture::Gfx942),
(TorchBackend::Rocm64, AmdGpuArchitecture::Gfx1030),
(TorchBackend::Rocm64, AmdGpuArchitecture::Gfx1100),
(TorchBackend::Rocm64, AmdGpuArchitecture::Gfx1101),
(TorchBackend::Rocm64, AmdGpuArchitecture::Gfx1102),
(TorchBackend::Rocm64, AmdGpuArchitecture::Gfx1200),
(TorchBackend::Rocm64, AmdGpuArchitecture::Gfx1201),
// ROCm 6.3
(TorchBackend::Rocm63, AmdGpuArchitecture::Gfx900),
(TorchBackend::Rocm63, AmdGpuArchitecture::Gfx906),
Expand Down Expand Up @@ -1100,6 +1125,8 @@ static PYTORCH_CU90_INDEX_URL: LazyLock<IndexUrl> =
LazyLock::new(|| IndexUrl::from_str("https://download.pytorch.org/whl/cu90").unwrap());
static PYTORCH_CU80_INDEX_URL: LazyLock<IndexUrl> =
LazyLock::new(|| IndexUrl::from_str("https://download.pytorch.org/whl/cu80").unwrap());
static PYTORCH_ROCM64_INDEX_URL: LazyLock<IndexUrl> =
LazyLock::new(|| IndexUrl::from_str("https://download.pytorch.org/whl/rocm6.4").unwrap());
static PYTORCH_ROCM63_INDEX_URL: LazyLock<IndexUrl> =
LazyLock::new(|| IndexUrl::from_str("https://download.pytorch.org/whl/rocm6.3").unwrap());
static PYTORCH_ROCM624_INDEX_URL: LazyLock<IndexUrl> =
Expand Down Expand Up @@ -1248,6 +1275,10 @@ static PYX_CU80_INDEX_URL: LazyLock<IndexUrl> = LazyLock::new(|| {
let api_base_url = &*PYX_API_BASE_URL;
IndexUrl::from_str(&format!("{api_base_url}/simple/astral-sh/cu80")).unwrap()
});
static PYX_ROCM64_INDEX_URL: LazyLock<IndexUrl> = LazyLock::new(|| {
let api_base_url = &*PYX_API_BASE_URL;
IndexUrl::from_str(&format!("{api_base_url}/simple/astral-sh/rocm6.4")).unwrap()
});
static PYX_ROCM63_INDEX_URL: LazyLock<IndexUrl> = LazyLock::new(|| {
let api_base_url = &*PYX_API_BASE_URL;
IndexUrl::from_str(&format!("{api_base_url}/simple/astral-sh/rocm6.3")).unwrap()
Expand Down
3 changes: 3 additions & 0 deletions docs/reference/cli.md
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Expand Up @@ -4301,6 +4301,7 @@ by <code>--python-version</code>.</p>
<li><code>cu91</code>: Use the PyTorch index for CUDA 9.1</li>
<li><code>cu90</code>: Use the PyTorch index for CUDA 9.0</li>
<li><code>cu80</code>: Use the PyTorch index for CUDA 8.0</li>
<li><code>rocm6.4</code>: Use the PyTorch index for ROCm 6.4</li>
<li><code>rocm6.3</code>: Use the PyTorch index for ROCm 6.3</li>
<li><code>rocm6.2.4</code>: Use the PyTorch index for ROCm 6.2.4</li>
<li><code>rocm6.2</code>: Use the PyTorch index for ROCm 6.2</li>
Expand Down Expand Up @@ -4586,6 +4587,7 @@ be used with caution, as it can modify the system Python installation.</p>
<li><code>cu91</code>: Use the PyTorch index for CUDA 9.1</li>
<li><code>cu90</code>: Use the PyTorch index for CUDA 9.0</li>
<li><code>cu80</code>: Use the PyTorch index for CUDA 8.0</li>
<li><code>rocm6.4</code>: Use the PyTorch index for ROCm 6.4</li>
<li><code>rocm6.3</code>: Use the PyTorch index for ROCm 6.3</li>
<li><code>rocm6.2.4</code>: Use the PyTorch index for ROCm 6.2.4</li>
<li><code>rocm6.2</code>: Use the PyTorch index for ROCm 6.2</li>
Expand Down Expand Up @@ -4899,6 +4901,7 @@ should be used with caution, as it can modify the system Python installation.</p
<li><code>cu91</code>: Use the PyTorch index for CUDA 9.1</li>
<li><code>cu90</code>: Use the PyTorch index for CUDA 9.0</li>
<li><code>cu80</code>: Use the PyTorch index for CUDA 8.0</li>
<li><code>rocm6.4</code>: Use the PyTorch index for ROCm 6.4</li>
<li><code>rocm6.3</code>: Use the PyTorch index for ROCm 6.3</li>
<li><code>rocm6.2.4</code>: Use the PyTorch index for ROCm 6.2.4</li>
<li><code>rocm6.2</code>: Use the PyTorch index for ROCm 6.2</li>
Expand Down
5 changes: 5 additions & 0 deletions uv.schema.json
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